Canada's Social Stance
Is Tested by Arrests

MISSISSAUGA, Ontario -- The recent arrest of 17 Ontario suspects on terrorism-related charges has lifted the lid on a simmering controversy among Canada's Muslims: A segment of this growing community worries that an increasing number of mosques have come under the sway of fundamentalist imams.

While the validity of the allegations -- from planned bombings to hostage-taking -- remains to be seen, the arrests in themselves have given worried congregants an opportunity to raise a red flag. They say the messages delivered in...